| ; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -mattr=+simd128 | FileCheck %s | |
| ; Regression test for an issue with patterns like the following: | |
| ; | |
| ; t101: v4i32 = BUILD_VECTOR t99, t99, t99, t99 | |
| ; t92: i32 = extract_vector_elt t101, Constant:i32<0> | |
| ; t89: i32 = sign_extend_inreg t92, ValueType:ch:i8 | |
| ; | |
| ; Notice that the sign_extend_inreg has source value type i8 but the | |
| ; extracted vector has type v4i32. There are no ISel patterns that | |
| ; handle mismatched types like this, so we insert a bitcast before the | |
| ; extract. This was previously an ISel failure. This test case is | |
| ; reduced from a private user bug report, and the vector extracts are | |
| ; optimized out via subsequent DAG combines. | |
| target triple = "wasm32-unknown-unknown" | |
| ; CHECK-LABEL: foo: | |
| ; CHECK: .functype foo (i32) -> () | |
| ; Implementation omitted... | |
| ; CHECK: return | |
| define void @foo(ptr %p) { | |
| %1 = load <4 x i8>, ptr %p | |
| %2 = sitofp <4 x i8> %1 to <4 x double> | |
| %3 = fmul <4 x double> zeroinitializer, %2 | |
| %4 = fadd <4 x double> %3, zeroinitializer | |
| %5 = fptrunc <4 x double> %4 to <4 x float> | |
| store <4 x float> %5, ptr undef | |
| ret void | |
| } |